Arsenal boss Arsene Wenger says last season's thrashing by Manchester City was a turning point in William Gallas' career.
"I am very impressed by William's response and by what happened to him that week because it was a very difficult week," said Wenger.
"We have come very far since then. It was our last defeat in November and we did not lose again until May, against Chelsea and the semi-final exit of the Champions League to Manchester United.
"It was a difficult period because to lose 3-0 at Man City was very hard to take. Everything went against us on the day.
"There was the penalty on half-time, the second goal came quickly. After that they played only on the break and it was the kind of game where we had everything against us.
"Overall, I believe we have moved forward a lot from what was a low point. It was after an international game again and we can show on Saturday that we have learned from that and we are much stronger."
